Elvis10ten

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/discoverFragmentContainer"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.mobymagic.shazamclone.discover.DiscoverActivity" />

Elvis10ten

package com.mobymagic.shazamclone.discover

import android.support.test.espresso.Espresso.onView
import android.support.test.espresso.assertion.ViewAssertions.matches
import android.support.test.espresso.matcher.ViewMatchers.isDisplayed
import android.support.test.espresso.matcher.ViewMatchers.withId
import android.support.test.filters.LargeTest
import android.support.test.rule.ActivityTestRule
import android.support.test.runner.AndroidJUnit4
import com.mobymagic.shazamclone.R

Elvis10ten

package com.mobymagic.shazamclone.discover


import android.os.Bundle
import android.support.v4.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import com.mobymagic.shazamclone.R

Elvis10ten

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/discoverFragmentView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.mobymagic.shazamclone.discover.DiscoverFragment">

    <!-- TODO: Update blank fragment layout -->
    <TextView
        android:layout_width="match_parent"

Elvis10ten

override fun onCreate(savedInstanceState: Bundle?) {
    ...
    FragmentUtils.addIfNotExist(supportFragmentManager, R.id.discoverFragmentContainer,
            DiscoverFragment(), "DiscoverFragment")
}

Elvis10ten

package com.mobymagic.shazamclone.utils

import android.support.v4.app.Fragment
import android.support.v4.app.FragmentManager

object FragmentUtils {

    fun addIfNotExist(fm: FragmentManager, containerRes: Int, fragment: Fragment, tag: String) {
        val existingFragmentWithTag = fm.findFragmentByTag(tag)

Elvis10ten

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/discoverFragmentView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="?attr/colorPrimary"
    tools:context="com.mobymagic.shazamclone.discover.DiscoverFragment">

    <!-- SpinKit is just a progress view. We want it to show below every other view in this layout.

Elvis10ten

package com.mobymagic.shazamclone.discover
import android.support.test.espresso.Espresso.onView
import android.support.test.espresso.action.ViewActions.click
import android.support.test.espresso.assertion.ViewAssertions.matches
import android.support.test.espresso.matcher.ViewMatchers.isDisplayed
import android.support.test.espresso.matcher.ViewMatchers.withId
import android.support.test.filters.LargeTest
import android.support.test.rule.ActivityTestRule
import android.support.test.runner.AndroidJUnit4
import com.mobymagic.shazamclone.R

Elvis10ten

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/songDetailFragmentContainer"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.mobymagic.shazamclone.songdetail.SongDetailActivity" />

Elvis10ten

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/historyFragmentContainer"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.mobymagic.shazamclone.history.HistoryActivity"/>